Combined grate and water heater



Feb. 13, 1923n 1,445,517. F. F. KRGESNER.: COMBINED GRATE AND WATERHEATER.

f m F5.

l I 6 l lq( f l] .null 1,1. /4 A /2' nl luf 4 7 I l if 'VII 6 ',IUI /6I. Il' l Il l' I 9 IW, l un* l m A MUNI/WV 'HH' 'H Il n U'h W' l II'IHILllatented Feb. i3, i923.

uri rires FLORENCE F. KIRGESNER, OF SAN FRANCISCO, CALIFORNIA, ASSIG-NORTO GEORG-E J'. KIRGESNER, OF SAN FRANCISCO, CALIFORNIA.

l COMBNED GRATE AND WATER HEATER.

Application led March 2, 1921. Serial No. 449,179.

T0 all lwir-0m4 it may conce/rui:

it known that l, Mrs.) FLORENCE ll'. Kinonsnnn, a citizen of the UnitedStates, residing in the city and county of San Fran cisco and State ofCalifornia, have invented a new and useful lmprovement in a CombinedGrate and later Heater, of which the following is a specification. Myinvention relates to improvements in combination grates and waterheaters for gas plates and the like wherein a tubular portion isarranged to form burner openings above the burners of the gas plate tofacilitate the circulation of water to be heated in proximity to the gasburners.

The primary object of the present invention is to provide a new andimprovedgrate for gas plates and the like having improved facilities forheating water while the said plate is being used for culinary purposes.

Another object of the invention is to provide an improved device of thecharacter described having improved means for concentrating the heatfrom the gas burners onto a utensil thereby effecting' a saving in fuel.

A still further object of the invention is to provide a simple, cheapand effective grate, for gas plates and the like, having simple andeiiicient means for heating water while said plate is leing used forculinary purposes.

l accomplish these and other objects by means of the improved devicedisclosed in the drawings forming a part of the present specificationwherein like characters of reference are used to designate similar partsthroughout said specification and drawings, and in which:

F ig. l is a broken plan view, partly in section, of a gas platedisclosing my iniproved grate and water heater applied thereto;

Fig. 2 is an enlarged elevation of the left hand end of Fig. l; and

Fig. 3 is a transverse sectional view taken on line of Fig. l in thedirection indicated.

Referring to the drawings the numeral l is used to designate a gas plateof the usual standard type having the usual burners 2.

The usual grate provided with the gas plate l is removed and in placethereof I provide a grate comprising a frame 3 having formed integraltherewith ribs it supporting substantially a ligure 8 tubular portion 6forming burner openings 7 above the burners 2 and separatedlongitudinally as at -9 in the central portion of said figure 8 toprovide for expansion and contraction of said tubular portion due tovarying ternperatures under which the device operates.

The tubular portion 6 is provided, at one end thereof, with an inlet l1and an outlet l2, the inlet being arranged below the plane of the outletto facilitate circulation of water being heated within the tubularportion 6. rThe inlet and outlet 1l and l2 respectively, may beconnected to a suitable boiler or reservoir, not shown, whereby a supplyof hot water may be maintained until required for use.

A suitable drain 14 is provided at the opposite end of the tubularportion 6 and closed by a suitable plug 16.

` The ribs l are arrano'ed to support a utensil 18 to be heated, forculinary or other purposes, a slight distance above the burner openings7 in the tubular portion 6, and said tubular portion 6 is likewisesupported a slight distance above the burners 2 of the gas plate l bysaid ribs 4.

y means of this arrangement the burner opening 7 in the tubular portion6 provides a. flue to facilitate the concentration of heat from theburner 2 onto the bottom of the utensil 1S, and said heat is furtherconcentrated onto the bottom of said utensil 18 by means of the spacebetween the top of the tubular portion 6 and the bottom of said utensil18.

The result of this direct application of heat is a direct saving in fuelas well as a saving of time in heating said utensil 18 to a giventemperature as heat which would be otherwise dissipated and radiatedinto the surrounding` atmosphere is carried by the created draft. asdisclosed by the arrows in Fig. 3 of the drawings, directly onto theutensil to be heated.

The separation longitudinally of the ce11- tral portion of the iigure 8formed by the tubular portion 6 is also an important feature of theinvention for the reason that the tubular portion 6 may readily contractand expand under varying temperatures to which it is exposed during` theuse and nonuse of the burners.

As the device is composed substantially of one piece it is obvious thatit may be easily and cheaply produced and at the same time effect asaving of fuel and time when used for culinary purposes and also heatwater whichmay be stored in a tank or othervcontaincr, not shown, forfuture use, without the additional expenditure offuel `to heat saidwater.

A still further advantage to be obtained from the use of this devise isthat heat will be absorbed in heating thewater instead of being diffusedor radiated into the compartment or room Within Which the culinaryprocess is being performed; thereby preventing excessive heat due tocooking7 which, during the summer months in Warm climates; wouldotherwise occur.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

l. A combined grate and Water heater comprisinga grate adapted formounting upon a plate above burners connected thereto; a tubular portionformed integrally with the grate and arranged to form substantially afigure B Water passage separated longitudinally in the central portionthereof to permit expansion and contraction of said tubular portionsunder varying tempe 'atures and to form burner openings above theburners of the gas plate.

2. A combined grate and Water heater for gas plates comprising a gratearranged for mounting upon a gas plate above lnuners connected thereto;a tubular portion formed upon said grate and shaped substantially as afigure to form a Water passage, said tubular portion being separatedlongitudinally in the central portion thereof to provide for expansionand contraction and to form burner openings above the burners of the gasplate; an inletand an outlet communicating with the tubular portion andarranged to be connected to a Water tank; and a drain arranged t0 permitdrawing of Water from the tubular portion Without dis connecting thesame from the tank.

3. A combined grate and Water heater for gas plates comprising a gratearranged for mounting upon a gas plate above burners provided thereon; atubular portion formed integrally With the grate and shapedsubstantially as a figure 8 to form a Water passage, saidtubular portionbeing separated longitudinally along the central portion thereof toprovide for expansion and contraction and to form burner openings abovethe burners of the plate; an outlet passage communicating with thetubular portion; and an inlet opening into the tubular portion belowsaid outlet to facilitate circulation of Water through said tubularportion.

In Witness whereof I have hereunto set my signature.

FLORENCE F. KIRGESNER.

